This dataset for example (https://openneuro.org/datasets/ds002791/versions/1.0.0) has different channel names in its channels.tsv and electrodes.tsv files.

sub-01/ses-naming/eeg/sub-01_ses-naming_run-1_electrodes.tsv
F10h 6.962 5.382 -2.191
F8 6.484 6.404 -0.14
AFF8h 5.699 7.208 1.791

sub-01/ses-naming/eeg/sub-01_ses-naming_run-1_channels.tsv
E1 eeg microV 1000 n/a n/a n/a n/a n/a n/a n/a
E2 eeg microV 1000 n/a n/a n/a n/a n/a n/a n/a
E3 eeg microV 1000 n/a n/a n/a n/a n/a n/a n/a
...

The specification suggests that the name should be the same. It also does not enforce that electrodes.tsv should have the same number of rows as channels.tsv.

https://bids-specification.readthedocs.io/en/latest/04-modality-specific-files/03-electroencephalography.html

Solutions:

1. Clarity in the specification that electrodes.tsv should have the same number of rows as channels.tsv
2. Change the validator to enforce that channel names are the same between electrodes.tsv and channels.tsv