[cell9840179419]

Ideally you should have no more than a dozen state driven components in a page. 1000 is a very large number for any state driven system such as React. Here are a few things. 1) use a custom spreadsheet component which manages its own state and you manage only one state 2) if not, use key to make sure you do not have a high component turnover on every event 3) provide file upload where they can create content elsewhere and upload to you

You are right. BE is declarative hence solid (pun) once put in place. FE is design, aesthetics, ease of use, beauty, culture, above all functional. Hence tougher.