To fully service a motorcycle brake fluid? You sometimes need to. On KTM motorcycles you need a scantool that dealers have to command the ABS to cycle the fluid from the ABS unit into the brake lines so that they can be flushed properly, and KTM uses Bosch ABS units at least on the RC390.
No idea how important a full flush is on this MAGURA system and this ABS unit.
For general maintenance? Doubtful. To the person making carbon fiber frames? Have you seen how much those things cost?
I'd be shocked if more than 20% of carbon fiber frames sold in Europe were made in Europe or if more than 1% of carbon fiber frames sold in Europe had an a average labour cost of above $25/€25 per hour. The design, testing, material and tooling is expensive but for mass production the labour cost per unit is not anymore.