surely not?!
of al the comments i’ve ever seen about TradingView (which do include some complaints, as well as very widespread praise), i’ve certainly never heard of anyone switching back from TV to MT! 
i honestly find it very hard to imagine that anyone could
it’s one of those subjects on which there can be varying opinions, though, depending on who/where you ask
if you ask in a forum for forex beginners, sadly the huge majority of the members are using MT
if you ask more experienced traders, long-term profitable traders or professional traders, you literally won’t hear a single recommendation for MT, just a lot of warnings about it, some more strongly worded than others; you’ll hear from a lot of people who like TV, though (and for good reasons, IMO)
the comparison you’re asking about, IMO (many here will disagree with me, obviously - nothing new, there!), is between one of the best trading platforms and the world’s very worst