Well TRON is already one of the most popular and fastest blockchains, it remains to be seen the effect of this partnership on the network
The only reason why Tron becoming a blockchain for everyone to do transaction was because of the fee. Every ISDT transaction was cheaper than its counterparts in term of transaction fees.
Compared to many blockchains, fees are not the cheapest
[1], there is an average of $1.5 for some blockchains, but compared to the past, the average was $0.7 and we rarely see transaction fees above $1. If ERC20 fees drop below $1, it will be the end of TRON.
[1]
https://www.cropty.io/wallets/usdt-wallet/fees