S1 #11 & 14: "unsuccessful"...well...no.
UK/US placed early jet schemes with spare designers (US: Bell; UK: DH, Gloster, Miles) to concentrate proper teams on maxing pistons. By mid-44 VS Drawing Office was breaking out from Spiteful/Seafang, as RR was scheming a 4,000lb. RB.40. A simple Jet Spiteful was to be wrapped around it, R&D + 3 prototypes funded 5/8/44. Hawker toyed with a Jet Fury but was not yet free of Furies when PM, 15/1/45, required funding to be confined to military projects likely to attain “substantial operational status by Autumn,’46”.
New PM Attlee, despite enquiring "who is there to fight at sea", funded 24 Attackers for RN 29/11/45, by now with 5,000lb. RB.41 Nene, and 3/46 funded R&D + 3 Hawker P.1040 (whether RAF or RN would have interest and budget was not then clear). So, to be Sea Hawk would be well behind to be Attacker (so, to be Hunter, behind to be Swift).
As Stalin, then TS Mao became problems, 1948/49, Attackers could be produced quicker than later paper schemes. As ever, UK Naval Aviation was expected to make do with what was available. It was no worse, really than Yak and LaGG-15s, Ouragon, P-80B, P-84B: just that they all had better successors sooner than did UK.