I am not saying there is almost no ICM with 16 players left and top heavy payouts. I am saying that it isn't that big an issue. If you had a large stack going up against a large stack there would be big ICM issues.
I also don't agree with the way OP and some other posters focus on the mincash. OP's expected payout if you did an ICM
chop is probably like $3000 and the mincash is $600.
If you were short stacked late in a tournament, without payout issues, then you would be pushing really light with 7xBB. I don't think you should change it much here, because people are calling much tighter than they would call a short stack if you pushed 7xBB far from the money.
As for pushing an average hand from CO for 6xBB, it isn't that weird. I don't know whether the software tools people are using today would tell you to do it, but I think they wouldn't because they don't consider maintaining FE and future benefits of a large stack. Nash doesn't consider that either.
I don't consider it just pushing by feel to make adjustments to what push/fold software tells you. MTTSNGs are tougher today, and I wasn't playing the highest stakes, but I was crushing by making better push/fold decisions than the software recommended, way better postflop play than most of the regs, and various tricks. I was offering coaching services I was qualified for at a fair price.
Lissi is a great player, but obviously has some leaks if he thinks that the key thing in tournaments is playing for the mincash. This hand is comparable to is you had 120K chips in the WSOP ME with 200 players left to cash. I don't think any good player would advise you to focus on the mincash then.