Why the attitude?
Notice the smiley? I could not make it any bigger.
This has been suggested many times before and nothing has changed - that is why I doubt it will ever change.
Having developed software for a number of years and watched the effects of modifications to this game - one has to be careful asking for change. Invariably, new errors are introduced (or old ones flare up) when changes are made. There has to be a really good reason for a change - and for WGT - there usually has to be a definable return on investment.
You can already turn off TopTracer completely in the options and you can close it anytime you want during play. It seems that WGT feels that is enough.
I use the info in TopTracer during practice and to double check spin and power when I get one of those shots, and then, if it is on the way - I just close it.