Why do we keep hearing misleading comments about a supposed "gender savings gap"?

Of course if women take a couple of working years off then they will have lower balances than men at a particular older age, however to have 15 years in retirement a man would need to retire at 65 whereas, due to her longevity advantage, a woman could retire at 67. Those "deferred" 2 years in the workforce will compensate for her having had time off work earlier in her life, particularly with the benefit of compond interest on her larger balance close to retirement.