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ADS1120: Circuit for 2 RTDs (PT1000) in 2 wires mode with 4 channel ADC

Part Number: ADS1120


in your Application Note "A Basic Guide to RTD Measurements" in section 2.7.1, a circuit is shown for 2 RTDs needing a 5 channel ADC.
As AIN2 and AIN3 are shorted together at the RTD inputs, would it be possible to modify the circuit to combine them using just 1 AIN?

=> RTD1 is measured between AIN1 and AIN2 and RTD2 is between AIN2 and AIN3.

Here is a picture (before and after the circuit modification):

We want to measure slow signals from 2 PT1000s (max. 1°C/s), would this modified circuit work?

Or can you provide documents, etc. why it would not work.

Thank you very much in advance!

Best Regards