Clue less. Many of their balance sheets have lower debt / equity ratios than they did decades ago.

I guess you wouldn't consider spending $ 1 billion to buy $1.6 billion in productive assets, huh?

Sure they added debt.  The question is, was that money well spent or not? 

ENB made a major acquisition. They've said they'll increase their common  share dividend by 15% in 2017 and then by an additional 10% to 12% every year through 2024. That sounds like a company in trouble doesn't it? And their dividend payout ratio will be only around 60%. Lots of room  for error. Similarly EMA has said to expect an 8% per year ividend increase. And ENF has said to expect ~ a 10% per year increase. 

Show me why what these companies have publicly stated is wrong. In detail. You can't. You simply and I really do mean simply assume that increased debt with zero regard to increased assets is a negative. It's like somone borrowing $100,000 to buy a house today is irresponsible vs. $50,000 a years ago.