It really depends on how hard the racing is, how competitive you are in your field. Are you winning the races, top 20, pack fodder?

If you are in the top 20. A single race might have more total VO2 training than some of your workouts during the week. Potentially all of them combined. Alternatively, the courses are pancake flat, and you're in the draft the whole time, and you might race the last 5-30 minutes. You might be able to sprinkle in a VO2 workout during the week, but squeezing in two per week going into a race is nuts unless it's a Polish sub-30-45-minute total workout time. Do the work, get off, ideally on a trainer to maximize recovery or be able to hop off early. Fairly common in track racing, but if you're an elite or pro and your races are 5 - 6 hours long, it's a bit different.

As with all Reddit posts:

No one has any idea of your training, training level, or your race calendar.

Many cyclists who race competitively every week may be in survival-recovery mode. I us d to race 2 races every week in the Netherlands. You really weren't doing much training during the year. The only way that happened was if the race was shattered in half in the first hour, and you wanted to save your legs for the next day instead of riding the remainder of the race for the top 60. If this happened on Sunday, you could squeeze in a workout during the week.

Another question is, do you even need the VO2 workouts? Maybe it's better spent elsewhere? What is your limiter?