Why doesn't boxplot work with cells in a table? 'X' parameter must be a numeric vector or matrix.

tldr: Is there some minor edit my code for boxplot to read the data in the cell (e.g. wrap in {} or use (:)), or must I change the table to explicitly put each datum in its own row with its own DoseInterval specification?

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If I create a table that neatly stores data using cells, MATLAB insists the boxplot input data be a numeric vector or matrix. Why doesn't it use the data in the table's cell? Will this feature be included in a future release?

The table:

 Planned = cell(9,1); Planned(:) = {10*rand(1,100)};
 Measured = cell(9,1); Measured(:) = {   rand(1,100)};
 datatoplot = table(Planned,Measured,{'1-2';'2-3';'3-4';'4-5';'5-6';...
                          '6-7';'7-8';'8-9';'9-10'},'VariableNames',...
                            {'Planned' 'Measured' 'DoseIntervals'})

The attempted boxplot:

 figure
  boxplot({datatoplot.Planned},datatoplot.DoseIntervals,'Colors','r')
  hold on
   boxplot(datatoplot.Measured,datatoplot.DoseIntervals,'Colors','b')
  hold off

The error:

Error using boxplot>straightenX (line 895)
'X' parameter must be a numeric vector or matrix.

Error in boxplot (line 273)
[xDat,gDat,origRow,xlen,gexplicit,origInd,origNumXCols] = straightenX(x,g);

Looking at the straightenX function in the boxplot script, it appears to assume the input is a vector or matrix, as the error message indicates. Will it be coded to check if it's a cell and read the data in the cell in a future release? Is there some easy way to edit my code to read the data in the cell, or must I change the table to explicitly put each value in its own row with its own DoseInterval specification?