I don't know why people are getting their knickers in a twist, really.
Don't get me wrong - they are cheap rides and second hand, but I don't think the resort even had other additions planned for 2019 other than Dungeons/pods. They're literally bonus capacity for CBeebies Land, which does suffer on medium and busy days. Remember Sea Life was second hand, too. They're coming from a closed small Merlin German park.
With CCL rumoured to get a full retheme/change in the next couple of years, Frog Hopper's time could be up soon too. Alton have proven already that CBeebies rides tend to be pretty nicely presented and I am sure these two towers will have an audio package and themed surroundings.
It's of no interest to me, but similarly, it doesn't offend me either. It's probably costing ATR a couple of hundred thousand for the entire thing.