Yeah you're probably right. I will wait and see what they say, although I'm sure it has been requested in the past from people with poor eyesight or people wanting to prevent straining their eyes and to prevent any sight related problems in the future.
My issue on the other hand is related to operating from high time frames, even with the lowest zoom level I feel too much of my chart space is taken up with old, irrelevant, unnecessary and distracting price action that isn't needed for my style of trading. I would like to enlarge the candles to put the emphasis back on the current, now-moment price action. Not to mention the more candles displayed on the chart at once, the higher chance there is that the total trading range for the displayed candles is quite large and will then start to compress and squash the candles, even in full screen mode.
I could chart shift and/or limit the total maximum bars on the chart and in the history but that will just put everything to the left of my screen and will spread the total trading range over fewer bars which will then stretch and warp them to the extreme.