The 365s biggest problem was their relatively low fleet size. 40 units (41 before Potters Bar) were relatively easy to bin off and also made no sense being spread over 2 operators. Had 80+ 365s existed, with 40 at each of GN and SE, the SE ones could well have survived longer and made the 465/9 conversion unnecessary. What's helped the Networker fleet survive as long as it has, despite issues with reliability and for some poor quality interiors, has been a combination of their vast fleet size and a number of short-term franchise extensions. With 147x 465s and 43x 466s produced, all SE have been able to do is chip away at it until a large new order gets approval, they can't just bin them all off and carry on with virtually no direct replacement, like GN and other operators did during covid for 365s, 455s and 456s.