(c) If, after passing the outer marker or equivalent position in accordanc e with (a) above, the reported RVR/visibility falls below the applicable minimum, the approach may be continued to DA/H or MDA/ H.
This is the problem though, at least with the LBA and CAT IIIb with no decision height. As there is no decision height you may not continue, if there is one, you may as it gives time for a go/no-go decision. Especially in consideration of point e).
Point f) is seen as a fixed requirement of 3 (or 4 if you have two midsection readings like MUC for example) RVR readings of at least 75m if they are relevant, ie as long as they are within the landing distance required which of course has to be calculated before starting the approach. If you have no automatic rollout system (older 737s for example) you need even higher readings.