[p_l]

Airbus is, supposedly, very much "boots on the ground" in cooperation with suppliers. Somehow nobody hears of issues they have with Spirit, but at the same time nobody hears of Spirit being squeezed dry by Airbus - only by Boeing.

[Symbiote]

Also Airbus mostly use the Spirit factories in the UK (from the link above), which Spirit acquired from a British company.

Plenty of room for differences between those factories and the former-Boeing one in the USA.

[p_l]

Including in terms of financial stability!