Probably...
However the Bitcoin network having the functionality of issuing assets and receipts will expand the TAM for Bitcoin's Timechain ledger use case and essentially end arguments for many "multichain" hypothesizes. Any asset or token issued on a blockchain has counter-party risk except for Bitcoin (where the risk is encryption mathematics).
While there are sure to be some shitcoinery things issued on Taro the pros will outweigh the cons imo. It will be an exciting future to see how entrepreneurs build bitcoin oriented products and make it easy for newcoiners to get off 0.