I think I'd like to agree but in this new hash commercial world of professional rugby, all the games count towards the teams' world rankings. These rankings, in turn, dictate the attractiveness of squads to sponsors and supporters; whose pretty lights run around the advertising hoardings, whose name flies high over the stadia beside the national flags and franchise logos; what brands and slogans appear on the jerseys, and on the butts of the togs, on the boots, socks, and headgear. It also dictates who donates POTY, MOTM/T awards, and which pretties get the most lucrative ad appearance fees. So performances and results in ALL matches are important.
Experimentation I fear now only happens behind closed doors.