I've seen TradingView myself and I know traders like it.
However, unless the TrVw code cannot be "shut down" by TrVw Inc. we can't use it as that could disable our charts on the DEX.
It depends on the license that TrVw requires. If there is a subscription cost and it's low makes sense to use it (provided we have full control and they can't shut us down should we miss a subscription payment).
Autonomy is the key. If we tie our wagon to the TradingView charts is our autonomy (i.e. chart functionality) limited by it?
As for contacting "the devs", there is no staff of devs here. The one you would want to contact about this is
@svk who is tied up on another project for the next few months. Svk pretty much coded the whole wallet using ReactJS.