Been discussed many times. The road was straightened slightly to make crossing earier, but the hoarding of the building site do not help line of sight.
The suggestion was turned down based on money and partial traffic disruption.
Personally when crossing, I do it at one end or the other and not right at the underpass. Before the cab station, or past the pub. 95% are going past these points, so it just means staying on the nicely widened pavement for a little longer.