When I review I check the math too. I don't find it difficult. My problem with the CB is that it frequently has calcultation errors, the summary doesn't help you see how a PC's central features function, and it frequently doesn't allow things that function by RAW or allows things that don't.
And humans cannot make these and many other errors?
I have seen a few incorrect calculation errors in CB, but not "frequent".
And, I didn't specify the summary of CB above, I specified a .PDF of the printout. The printout has a ton of information in it (4+ pages). That's the reason it is used by hundreds of thousands of gamers the world over in their table top and online games.
I think you are overemphasizing the problems with CB and not realizing that humans writing stuff manually often make even more mistakes than CB ever does. Many first cuts at review of new characters here often have a laundry list of things that don't match or missing elements or bad math, etc.
CB also auto-adds in new rules that players and reviewers might never see once a power, feat, or item is changed. So, the next level / printout of PCs are correct for any new rules. The old rules are not carried forward blindly.
A cleaner wiki could have .pdf, background section, and a small section for .pdf corrections (e.g. auto-expertise, etc.) and STILL be a ton easier to review, and a lot less prone to error.
Btw, maybe some people have a tool that allows them to edit the template by just cutting and pasting in text without messing with the script codes. If so, great. I'm sure one exists. But if so, some people do not have access to it. That's a part of the problem. The math can be another problem.
A .pdf printer driver is free to all. Just download cutepdf or coolpdf from the Internet. And if a given player doesn't want to use CB and wants to manually edit the template, have at it. Just don't force everyone to use that stone age process.