I have never hold any satoshi of WBTC so I would like to ask: Are the withdrawal fees for WBTC more competitive than BTC in general?
On the second point, I agree WBTC has its utility but it is not made for hodling, the essence of DEFI is to be trustless and decentralized, so I find it quite ironic to use a centralized token of Bitcoin in order to interact with the Ethereum network.
One's supposed to trust to go trustless ? Not for me, personally.
If I ever get paid with some WBTC for any reason, I'd swap it whenever I have the chance, to hold the real thing. Just my opinion.