Re: the commas, see the Free Modifier example from <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Comma#Parenthetical_phrases" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Comma#Parenthetical_phrases</a><p>The commas are not ideal, but neither are they ungrammatical.