Tahm Kench combo Q>W useless against champions? how about?

I was thinking about this the other day. that his combo is only usefull against minions to pull them from afar and then using them as bullets but for champions it does nothing beyond the Q(hit).

So I was thinking of the idea of his Q>W doing a knockup on champions it would make him have some CC and would be honest as he would trade his swallow for a CC attack.

This could be rather honest as it would not allow Tahm to swallow right after with any follow up what so ever and allow him to bring some CC to the table even if at the expense of 2 abilities at once.

any thoughts?