I haven't been to WS since the start of the pandemic, so I honestly didn't know the recent state of the concrete there. If the new concrete looks better, then that's great. I certainly don't want to criticize preventative maintenance, safety improvements, and other repair to maintain or improve show quality.
Many on this forum have complained about poor show quality (search for "disco Yeti"), so I think there is a desire among readers to improve show quality of existing attractions. I think the question is more along the lines of is the best way to spend $10,000 (*) of maintenance budget on this concrete replacement or would that same expense have had a greater impact somewhere else.
(*) - not actual cost.