I think this report is, most likely, either false or severely overblown.
Vince likes his top guys to work a safer style, doing fewer high-risk moves that might lead to injuries. It's been documented for a long time and is the reason that guys like Hulk Hogan, The Rock, Batista, and John Cena all got the "You can't wrestle" chants when it is well-documented that, in working in their early careers and outside of WWE, all of them did riskier, higher-impact, and higher-risk moves.
If Vince believes, as many do, that Zayn has a big future in WWE, then it's highly probable that Vince (or HHH) has asked him to tone down his high-flying, not eliminating those moves from his repertoire, but curtailing them and working this "safer" style. He's also pushed other guys to work safer styles (Chris Jericho, CM Punk, Daniel Bryan, Jeff Hardy...okay, with varying degrees of success) during the decades.
As for the "appealing to the fans from the top rope" deal, I have a feeling this is more about toning down the high risk stuff, as we've all seen a ton of top WWE guys go to the ropes to do taunts and play to the fans (not unusual: SCSA, Rocky, Punk, Orton, Christian, HHH and many others all did this/do this....it's kinda strange, but I don't recall Cena doing a great deal of it, but he does it some, too). I don't think there's anybody in the back asking guys to stop climbing the ropes to play to the fans.
wk