Having a pitch drawn is definitely better than nothing, but a long thin pitch is definitely incorrect (no football pitch is long and thin). Surely it would be better to make the pitch roughly the right aspect ratio, based on where the goals are? Even if it’s not exact, it’s going to be closer to being the right size than a long thin pitch is.

In the UK, you can (and should) use the OSMUK Cadastral Parcels to align Bing imagery consistently. See https://wiki.openstreetmap.org/wiki/Property_extents_in_the_United_Kingdom

Typically current Bing imagery is misaligned by 0 to ±2m in this area of the UK.