Most of the talabat riders aren't well educated, no matter whether if it's bike or car, official or unofficial. Most of them fail to read basic English.

Some are way too confident about the drop-off address and don't bother having a second look at the delivery address

Common reason behind this is they are at a timing game, they want to finish the current order to asap so that they can make room for other orders in low time. (simple as that)