"Super Hornet" no matter how it is redesigned is based upon 4th Gen capabilities. The whole point of buying into an advanced 5th Gen programme is to incorporate technology and capability capable of operating against future complex threats given that all of our near peer and peer adversaries are eroding our current technical lead.
Why would we want to buy into something that's fit for todays fight but will immediately become increasingly irrelevant over the next 20 years and which would leave us less able to contribute with our coalition/partner nations?
The bottom line is that very few complex weapons systems appear off the drawing board in perfect working order. Typhoon is only now getting its full capability. F35 was always going to be delivered in blocks, because its adopting complex and largely new technology to keep it at the leading edge.
The aircraft increasingly gets positive feedback from aircrew they should be the yardstick we judge it by, not the press. The reports from the recent red Flag in Nevada were overwhelmingly positive (15:1 kill ratios), not bad for an aircraft so new and still being developed as a warfighting platform.