grammar - Is English changing to make “Jack told Jill and *I* to walk faster” acceptable?

Consider:

Jack told Jill and I to walk faster.

instead of

Jack told Jill and me to walk faster.

This “mistake” seems to be becoming more and more common, even among TV newscasters or commentators. Seems as if this is going to be a permanent change in English grammar, adding a complexity:

Jack saw me there.

Jack saw Jill and I there.

Is it?