This is totally incorrect interpretation.
Text cell formatting is specifically what you were asking for: disable any interpretation of entered text, and store it as-is.
If you need robust behavior in cases of additions/movements of cells, you need to apply the formatting to the whole column(s). As you seem to want to just disable the detection, (you don’t mention that you want it in some cells only) which might mean that you are using spreadsheet an a big text table, it might mean that it’s enough to modify Default cell style to have Text formatting. That’s all, and that gives you the spreadsheet without any input interpretation.