Is "anupassi" translated as "focused" accurate? I read the following on the internet:

If having a little wisdom one would not see any different between
&quot;staying right focused&quot; and &quot;watch closely&quot;, but the fool seeks to
accumulate knowledge just for gain and to pave his way downwardly.

From the Pali suttas, the word &quot;anupassi&quot; is translated as follows:

On that occasion the monk remains focused on the body in &amp; of
itself — ardent, alert, &amp; mindful — putting aside greed &amp; distress
with reference to the world. Thanissaro
on that occasion a bhikkhu abides contemplating the body as a body,
ardent, fully aware, and mindful, having put away covetousness and
grief for the world. Bodhi
That’s why at that time a mendicant is meditating by observing an
aspect of the body—keen, aware, and mindful, rid of desire and
aversion for the world. Sujato
a monk lives contemplating the body in the body, ardent, clearly
comprehending and mindful, having overcome, in this world,
covetousness and grief Nyanasatta Thera
a bhikkhu lives contemplating the body in the body, ardent, clearly
comprehending (it) and mindful (of it), having overcome, in this
world, covetousness and grief... Soma Thera
a monk fares along contemplating the body in the body, ardent,
clearly conscious (of it), mindful (of it) so as to control the
covetousness and dejection in the world... Horner
that bhikkhu is considered one who lives constantly contemplating body
in bodies, strives to burn up defile­ments, comprehends readily, and
is mindful, in order to abandon all liking and disliking toward the
world... Buddhadasa
in regard to the body a monk abides contemplating the body, diligent,
clearly knowing, and mindful, free from desires and discontent in
regard to the world. Analayo
Contemplates the body in the body with effort, sampajañña and sati,
eradicating covetousness and distress with regard to the world...
Payutto
These unpleasant feelings are dukkha-vedana and the contemplation of
these feeling is vedananupassana, contemplation of feeling...
Mahasi Sayadaw

It appears, from the ten translators above, the American Geoffrey DeGraff (also named Bhikkhu Thanissaro) has uniquely translated &quot;anupassi&quot; as &quot;focused&quot;.
Questions:

Is Thanissaro's translation accurate? Is the English word &quot;focused&quot; synonymous with the other translations of &quot;contemplating&quot;, &quot;observing&quot;, &quot;watching closely&quot;, etc?

Is there a possible downward path, misguidance &amp;/or confusion in adhering &amp; attaching to Thanissaro's translation? Why?

Is there a possible downward path in rejecting, admonishing &amp;/or even ridiculing Thanissaro's translation? Why?

Is there a possible upward &amp; even Noble path in rejecting, admonishing &amp;/or even ridiculing Thanissaro's translation? Why?
Anupassi is watching (by understanding) continuously.
You can translate into many words because when mind arising, there are many mind factors arising together with each mind.
However, according to each Sutta's context, the selected words are the most proper words for that Sutta.
For the example, Anupassi in DN22 MahasatipatthanaSutta.
Anupassi in that Sutta has many situations, many objects, etc., so Anupassi is the conclusion, Uddeso, of the whole  comprehension styles in DN22.
Anupasī is including Viharati, Ātāpī, Sampajañño, Satimā, Vineyya, Pajānāti, SatiPaccupatthitā, Nāna, PatisatiMattāya,Anissito, Na Upādiyati, SampajānaKārī, Paccavekkhati,  Upasanharati, Ariyo Atthangika Maggo, Sammāditthi, SammāSankappo, SammāVācā, SammāKammanto, SammāĀjīvo, SammāVāyāmo, SammāSati, SammāSamādhi, and every word in it's explanation such as Vitaka, Vicāra, pīti, concentration (focusing), etc.
You can see that if you want to translate Anupassī in DN22, you need to translate all of those words together, however you can't. So in this case the translation which is same as in Pāli is better, except you are the Tipitaka Memorizer who teaching one who is going to enlighten immediately. In this case, the proper words for that enlightening person are allowed. However, they need to get back to the original version in Pāli after enlightened to keep Buddha's teaching to 5000th B.E.